Work-support



E. H. BASTABLE.

WORK SUPPORT.

APPLICATION FILED JULY20,1916.

Patented Apr. 20,1920.

"-# Inn srxrns PATENT OFFICE.

EDWARD H. BASTABLE, OF SOUTH BRAINTBEE, MASSACHUSETTS, ASSIGNOR, BYMESNE ASSIGNMENTS, TO UNITED SHOE MACHINERY CORPORATION, OF PATERSON,NEW JERSEY, A CORPORATION OF NEW WORK-SUTIORT.

Application filed .T 11117 20, 1916.

To all whom it may concern:

Be it known that I, EDWARD H. BAS- TABLE, a citizen of the UnitedStates, and resident of South Braintree, in the county of Norfolk andState of Massachusetts, have invented certain Improvements in WorkSupports, of which the following description in connection with theaccompanying drawings, is a specification, like reference characters onthe drawings indicating like parts in the several figures.

The present invention relates to work supports and more particularly todevices for use in connection with such supports to prevent injury tothe upper and lining of a shoe.

During a number of the operations performed in manufacturing a shoe itis necessary to mount the shoe upon a work support or jack whichordinarily comprises a last pin or spindle adapted to enter the thimblehole or last pin socket in the heel end of the last. The length of thelast pin is usually somewhat less than the depth of the thimble hole andthe last is supported by a last supporting shoulder at the base of thelast pin which engages the cone of the last. The portion of the shoeupper extending beyond the cone of the last, being without support, hasa tendency to fall in over the cone of the last and, unless considerablecare is exercised when the shoe is jacked, the upper and lining arecaught between the cone of the last and the last supporting shoulder anddamaged when pressure is applied to the last.

It is an object of the present invention to provide a simple andeiiicient device for shielding the last supporting surface of a worksupport which will engage and spread the shoe upper away from the lastsupporting surface and the sides of the last during the mounting of theshoe upon the work support.

To this end one feature of the present invention consists in theprovision of a shoe upper spreading device normally disposedlongitudinally of the last and arranged for movement into upperspreading position transversely of the last as the shoe is placed uponthe work support.

Other objects and features of the present invention will be apparentfrom the Specification of Letters Patent.

Patented Apr. 20, 1920. Serial No. 110,309.

following description when considered in connection with theaccompanying drawings and the novel features will be set forth in theappended claims.

In the drawings,

Figure 1 is a view in side elevation of a well known type of shoe jackembodying the preferred form of the present invention;

Fig. 2 is an enlarged end elevation with the shoe and last in crosssection illustrating the upper spreading member in normally inoperativeposition; and

Fig. 3 is a view similar to Fig. 2 illustrating the position of theupper spreading member after the shoe has been placed upon the last pin.

The invention is herein shown by way of illustration as embodied in ashoe jack of the type known as the Crispin jack but 1t is to beunderstood that the invention may also be used to advantage in any typeof work support in which the last is mounted upon a last supporting seatwhich engages the cone of the last.

The illustrated work support to which the improved upper and liningprotector device of the present invention is applied comprises anadjustable bracket 2 having a forwardly projecting arm 1 upon which anadjustable toe post 6 is mounted. Pivotally secured on the bracket formovement toward the toe post 6 is a heel block 8 provided with anupright last pin or spindle 10 adapted to be received in a thimble holeor last pin socket 12 in the heel end of the last 14.

v To prevent the upper and lining from being caught between the cone ofthe last and the heelblock 8 when the last is mounted upon the shoesupport the last pin 10 is provided with an upper and lining protectordevice which is adapted to spread the upper away from the sides of theheel end of the last and the supporting block before the cone of thelast engages its supporting surface. In the illustrated preferredembodiment of the invention the upper spreading member comprises acollar 16 which is slidingly and rotatably mounted on the last pin 10.This collar is provided with two oppositely and laterally extendingupper engaging wings or arms 18 which when disposed transversely of thelast project a distance beyond the sides of the heel end of a last.

The last pin 10 is provided with a cam slot 20 extending substantiallyparallel to the axis of the last pin for a greater part of the length ofthe last pin and near the top of the last pin extending spirally of thelast pin, preferably a distance approximately one quarter of thecircumference of the pin. This cam slot receives a stud 22 projectingfrom the collar 16 of the upper spreading member. The upper spreadingmember is normally and yieldingly sustained at the upper end of the camslot 20 or at the top of thelast pin by a spring 24 surrounding the lastpin and interposed between the collar 16 and the bottom of a socketprovided in the last supporting block 8 at the base of the last pin. Thecam slot 20 is so formed on the last pin 10 that in the normallyinoperative position of the upper spreading nember at the top of thelast pin the arms 18 are disposed substantially longitudinally of asupported shoe or in the direction of the length of the last asillustrated in Fig. 2 and in the operative upper spreading position ofthe upper spreading member, as illustrated in Fig. 3, the arms 18 aredisposed substantially transversely of the last. The top of the wings 18are formed so as to provide a substantially flat supporting surface forthe cone of the last and preferably, in the inoperative position of theupper spreading member, they extend somewhat above the end of the lastpin to engage the cone of the last before the last pin enters the lastpin socket. The downward movement of the upper spreading member 16 islimited by engagement with the heel block 8 upon-which it seats itselfto support the shoe. When the last is forced downwardly upon the lastpin the cone ofthe last engages the wings 18 of the upper spreadingmember whereupon the upper spreading member is immediately rotated fromits normal inoperative position with the arms 18 disposed substantiallylongitudinally of the last into a position in which the wings aredisposed substantially transversely of the last during which rotativemovement the wings act to thrust the shoe upper and lining outwardlyaway from the sides of the last and the last supporting surfaces on theheel block and on the upper spreading member.

The transverse upper spreading position of the arms 18 relatively to thelast is not thereafter changed during the further downward movement ofthe upper spreading member 16 into last supporting position upon theheel block 8. "When the shoe is removed from the jack the spring 24 actsto return the upper spreading member into normal inoperative position atthe top of the last pin. This construction provides a simple and compactprotector device which operates with a certainty to spread the shoeupper and lining away from the last and last pin when the shoe ismounted upon the support.

Although in theillustrated preferred embodiment of the invention theupper spreading device is given only a quarter of a rotation about thelast pin, it is obvious that the upper spreading member may be given anydesired amount of rotative movement without departing from the spirit ofthe invention.

Having described my invention, whatl. claim as new and desire to secureby Letters Patent of the United States is 1. A support for a lasthaving, in combination, a last pin, upper spreading devices mounted onthe last pin and normally disposed substantially longitudinally of thelast, and means for moving the upper spreading devices into upperspreading position substantially transversely of the last as the last isbeing mounted upon the last pm.

2. A support for a last having, in combi nation, a last pin, upperspreading devices mounted on the last pin and normally disposed withinthe planes of the sides of the last, and means for rotating the upperspreading devices into position to project I beyond the sides of thelast to spread the upper outwardly as the last is being mounted upon thelast pin.

3. A support for a last having, in combination, a last supporting seat,shoe upper spreading devices associated with said last supporting seat,and means for rotating the upper spreading devices about an aXissubstantially perpendicular to the last supporting seat into position tomove the shoe upper away from the last supporting seat as the last isbeing mounted upon it.

4:. A support for a last having, in combination, a last pin, an upperspreading member mounted upon the last pinand having laterally extendingupper engaging arms normally disposed substantially longitudinally ofthe last, and means for moving the upper spreading member into positionto dispose the upper engaging arms substantially transversely of thelast to spread the upper outwardly as the last is Placed upon the lastpin.

5. A support for a last having, in combination, a last pin, an upperspreading member mounted upon the last pin and having laterallyextending upper engaging arms normally disposed within the sides of alast, and connections between the last pin and the upper spreadingmember constructed and last to spread the upper outwardly as the last isbeing mounted upon the last" pin.

6. A support for a last having, in combi nation, a last pm, an upperspreading member mounted upon the last pin having laterally extendingupper engaging arms normally disposed substantially longitudinally ofthe last, means to sustain yieldingly the upper spreading member at theupper end of the last pin, and connections between the upper spreadingmember and the last pin constructed and arranged to rotate the upperspreading member into position to dispose the upper engaging armssubstantially transversely of the last to spread the upper outwardly asthe last is being mounted upon the last pin.

7. A support for a last having, in combination, a last pin, an upperspreading member mounted upon the last pin and having laterallyextending upper engaging arms normally disposed substantiallylongitudinally of the last, a support for the upper spreading member, aspring to sustain the upper spreading member at the upper end of thelast pin, and a pin and cam slot connection between the upper spreadingmember and the last pin constructed and arranged to effect a rotation ofthe upper spreading member into position to dispose the upper engagingarms substantially transversely of the last during its downward movementupon the application of the last to the last pin.

8. A support for a last having, in combination, a last supporting seat,shoe upper spreading means associated with said last supporting seat,and means for moving the shoe upper spreading means in a planesubstantially parallel to the last bottom as the last is being mountedupon the last supporting seat from an inoperative position to a positionto move the shoe upper away from the last supporting seat.

In testimony whereof I have signed my name to this specification.

EDWARD H. BASTABLE.

